BLGY1232 Chromosomes, linkage and genetic maps
Chi-squared Test
2
χ 2=Σ (O−E)
E
Goodness of fit test
Tells us whether the data are consistent with expectation
The null hypothesis – there is no difference between the observed data and the
expected data
It must be greater than the critical value to state that P<?
If your value is greater than the one at P>0.05 you can reject the null hypothesis as
the probability that the observed variation is not due to chance
Chromosome and Linkage
When 2 alleles at different loci segregate together rather than that showing
independent assortment as they are on the same chromosome
Genes on the same chromosome co-assort
Mitosis;
Meiosis; generates haploid cells enabling 2 members of a gene pair to segregate
from each other in the formation of gametes, maternal and paternal chromosomes
segregate independently of their origin and will like up together, crossing over
between maternal and paternal chromosomes generates more genetic variation
Chi-squared Test
2
χ 2=Σ (O−E)
E
Goodness of fit test
Tells us whether the data are consistent with expectation
The null hypothesis – there is no difference between the observed data and the
expected data
It must be greater than the critical value to state that P<?
If your value is greater than the one at P>0.05 you can reject the null hypothesis as
the probability that the observed variation is not due to chance
Chromosome and Linkage
When 2 alleles at different loci segregate together rather than that showing
independent assortment as they are on the same chromosome
Genes on the same chromosome co-assort
Mitosis;
Meiosis; generates haploid cells enabling 2 members of a gene pair to segregate
from each other in the formation of gametes, maternal and paternal chromosomes
segregate independently of their origin and will like up together, crossing over
between maternal and paternal chromosomes generates more genetic variation
